Improvement in crosscut-saw handles



R. 1:". SPRAGUE.V Crosscut-Saw Handle.

Patented March I2, |878..

Inventor.'

` itylv.

Per.

N.FETERS. FNOTO-LITHOGRAPHER. WASHINGTON. Dv C.-

UNITED STATES.- PATENT OEEIcE.

RUFUS F. SPRAGUE, OF GREENVILLE, MICHIGAN.

IMPROVEMENT IN` CROSSCUT-SAW HANDLES.

Specification forming part of Letters Patent No. 201,298, dated March12, 1878; application iiled December 12, 1 "7.

` To all whom 'it may concern:

' part of this speoication, and in-which- Figure l is a side elevationof my improved handle applied to a crosscut-saw, and Fig. 2 is alongitudinal section of the same.

Similar letters of reference indicate corresponding parts in both thefigures.

My invention relates to adjustable 'sawhandles 5 and it consists in animproved construct-ion and combination of parts, substantially ashereinafter more fully described, and pointed out in the claim.

In the drawings, C is the handle, which is made of wood or metal, andhollow inside. The lower part of the handle is tenoned off and insertedinto a socket-piece or ferrule, E, having an annular' shoulder, e, andsmooth cylindrical section, j', the end or lower part of which forms ascrew-threaded section, E' of somewhat smaller diameter than the uppersmooth part.

Into the upper end of the tubular handle C is inserted a sleeve orcollar, B, forming a seat for the cap or button A, which is secured uponthe top or upper end of rod H, so as to turn freely upon the collar B.The socket-piece E is inserted into a sleeve, F, the upper part of whichis smooth, and slides upon the cylin drical smooth part of ferruleE,while the lower part has a female screw-thread, G', which takes withthe male screw-thread G of the ferrule E E'.

The closed end or bottom K of sleeve F has a notch or groove, J, andalso a perforation, i, through which passes the lower end of rod H, thelower part of which is cut away, and the end of it bent to form a hook,H', which faces or is directly underthe notch or seat J, so as to form aclamp, J J', the width of which may be ad j usted to fit any saw-bladeby simply turning the tubular handle C, and thereby working sleeve F upor down, according to the direction in which it is turned. The insertionof the saw-blade into this clamp is facilitated by beveling the underside or bottom K of sleeve F, as shown in Fig. 2, so as to form a slopeor incline, which will guide the upper edge of the blade into notch orseat J. From the foregoing description the operation of my improvedsaw-handle will be readily understood. The saw-blade having beeninserted sidewise into the clamp formed by the hook H and groove or seatJ, this is tightened down upon the upper edge of the blade by turninghandle C, the upper smooth part of the shouldered ferrule E serving as aguide for the sleeve F, so as to cause an easy and even up-and-downmotion of the latter, which Will cause seat J to bear evenly against theedge of the blade, thus securing this rmly in position.

Having thus described my invention, I claim and desire to secure byLetters Patent of the United States- The improved adjustable saw-handleherein shown and described, consisting of the following parts orelements in combination, viz: the tubular handle C, having shoulderedferrule E E', sleeve F, having screw-thread G' at its lower end, andterminating in the beveled button K, having seat J, and rod H, havingbutton A and hook H', substantially as and for the purpose specified.

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in presence of two witnesses.

RUFUS F. SPRAGUE.

Witnesses:

ALEXANDER GLEAsoN, FRANK A. ToMPKINs.

